Her younger sister, Hinako, is a girl who likes to do erotic things in exchange for pocket money. - I asked my brother for some pocket money, but his reply was, "No!" - ``I'll do all the naughty things for you, so give me some pocket money.'' The older brother's reason collapses due to the temptation of his cute younger sister! - ! - The older brother's wallet and balls are completely melted in the erotic situation that his younger sister sets up to prevent him from getting an erection! - !